Description
On an equilateral triangle with a 1/8 inch (.32 cm) green border, 3 7/16 inches (8.73 cm) in height overall, one point up, divided into three sections, the upper section yellow, the dexter section blue and the sinister section red, a gun bendwise in front of a tank track and wheels all black surmounted by a red lightning flash bend sinisterwise. In the apex the Arabic numeral "4" in black.

Symbolism
Yellow, blue, and red are the colors of the branches from which armored units were formed. The tank tread, gun, and lightning flash are symbolic of mobility, power, and speed. The Division's designation is in Arabic numerals.

Background